free port on ubuntu code example

Example 1: stop port ubintu

sudo kill -9 `sudo lsof -t -i:9001`

Example 2: kill port ubuntu

sudo kill -9 `sudo lsof -t -i:3002`

Example 3: kill process at a port ubuntu

sudo kill -9 $(sudo lsof -t -i:9001)

Example 4: kill port 3000 ubuntu

fuser -n tcp -k 9001